Hi kitesurfing1
I tested the Havoc 2011 10m, great high-end, but the low end is not it's strongest point. (rider 95 kg) Test a 14m in low winds before you buy it, you can feel how fast the big kite turns, how much steering power it costs, his low-end and high-end if the wind increase.
Kitefinder test results
http://www.kitefinder.com/en/kites/918/liquid-force-havoc-2011